Abstract Reduced graphene oxide (rGO) was synthesized and impregnated with silver and silver/copper for in situ DRIFTS investigation of ethylene oxidation. The catalysts were characterized using different techniques. SEM micrographs showed that the metals are dispersed on the rGO surface. XPS results showed the presence of the metallic silver and copper as CuO and Cu 2 O oxides. The in situ DRIFTS showed that in both catalysts the total oxidation of ethylene reaction prevails besides the intermediate formation of acetaldehyde. The presence of Cu ions or CuO and Cu 2 O at the surface indicate the presence of electronic structure, which may enhance the oxidation reaction. Graphic Abstract

中文翻译：

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还原氧化石墨烯上 Ag 和 Ag/Cu 上乙烯氧化的原位漂移研究

摘要 合成还原氧化石墨烯 (rGO) 并用银和银/铜浸渍，用于乙烯氧化的原位 DRIFTS 研究。使用不同的技术表征催化剂。SEM 显微照片显示金属分散在 rGO 表面。XPS 结果显示金属银和铜以CuO 和Cu 2 O 氧化物的形式存在。原位 DRIFTS 表明，在两种催化剂中，除了中间体乙醛形成外，乙烯反应的总氧化占主导地位。Cu离子或CuO和Cu 2 O在表面的存在表明电子结构的存在，这可以增强氧化反应。图形摘要